I could have sworn the limit was 350 characters including UBB code, now it's 250 excluding UBB code... I guess I have too much free time this week... EDIT: I meant "Change IN maximum sig link size" not "Change IS"... Oops, can't change the title, now everyone's going to know I can't type...
Tarpoinkeith, you can change the title (until is not late). Click on Edit, then Go Advanced, and from there you can change the title. Sometimes, until your post is the last in the thread, you can even delete your post.
I think it has to be a little more than 5 minutes. I've just changed the title of my previous post after, erm...10 minutes. But it is not the same time as for editing a post.